Stove-pipe-crimping machine



(No Model.) 2 Sheets-Sheet 1.

W. J. 881W. WOOD. v STVE PIPE GRIMPING MACHINE.

No. 857,888. Patented m8181887.

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(No Model.) n 2 Sheets-Sheet 2.` W. J. 8u T. W. WOOD.

' STOVB HPB GRIMPING MACHINE. l No.v 357,883". Patented Feb. 15, 1887.

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UNITED STATES PATENT OFFICE.

WALTER J. VOOD AND THOMAS W'. W'OOD, OF ATLANTA, GEORGIA.

STOVE-PIPE-CRIMPING MACHINE.

SPECIFICATION forming part of Letters Patent No. 357,883, dated February 15, 1887.

Applicautiou filed December 9, 1886. Serial No. 221,098. (No model.)

To all whom it may concern,.-

Beit known that we, W'ALTER J. WOOD and THOMAS W. VooD, citizens of the United States of America, residing at'Atlanta, in the county of Fulton and State of Georgia, have invented certain new and useful Improvements in Stove-Pipe-Crimping Machines; and we do hereby declare the following to be a full, clear,

i and exact description of the inventiou,such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form apart of this specification.

This invention relates to mechanism for crimping and beading the ends of sheet-metal tubes or cylinders, as well as stovepipes and the like.

The objects of ourv invention are, first, to provide mechanism which by a single operation will crimp or bevel one end of a length of pipe in order that it may be easily inserted within the end of another length, and at the same time form an interlocking bead upon the coupled end of two lengths df pipe, thus firmly securing' said two lengths; second, to provide such mechanism with adjustable supportingrollers, whereby the coupled lengths of pipe to which is to be secured the length under' going operation may be supported in alignment with said length.

The invention consists in novel features of construction and combinations, which will be fully set forth inthe ensuing specification, and claimed in the clauses at the close thereof.

In the drawings, Figure 1 is a vertical sectional view of our improved crimping and jointing apparatus. Fig. 2 is an end eleva tion of the supporting-frame and rollers, and Fig. 3is a sectional view of a modified form of the crimping and beading apparatus.

Referring to Fig. l, we provide a suitable framing, preferably of metal, and consisting of a standard, A, and housing A', the latter being secured to the standard in any suitable or preferred manner, and the standard being secured to a suitable working-bench, B, as shown. Vithin the housing are bearings c for a rotating shaft, C, carrying at its inner end a beveled crimping-roll, C', at its outer end a beading-roll, C, and at a point between these rolls a plain-surfaced guide-roll, C. These rolls are preferably secured upon the shaft C by set screws or other equivalent means, in order that they may be adjusted longitudinally upon the shaft. also provided with bearings d d', in which is journaled a shaft, D, provided with bevelingroll D and beadingroll D anda plain-faced guide-roll, D3. One of these shaftssay G-is extended at the inner end through the housing to receive a hand-crank, E, or other operating means. These shafts are provided with interlneshing pinions c3 d, and the bearings of the shaft D are mounted in guides inthe housing, to permit the shafts being moved asunder for the insertion of a pipe-length, F, between the rollers thereon. A stop, e, is adjustably sevcured at a little distance from the inner end of the bevelingrolls G' and D', and while we have shown this stop as mounted upon the shaft D, it will be understood that it maybe secured to the housing, as its only purpose is to stop a length of pipe at a proper position with relation to the respective rolls.

The housing is To move the shafts C and D asunder for the reception of thelength of pipe. we have interposed springs G between the bearings of said shafts, which springs are compressed to bring the shafts and their rollers into operative position by means of a screw and follower, G; but it will be understood that a screw or lever may be used to move the bearings d d in both directions without departing from the principles of our invention.

The suppor Tug-rolls H are arranged in pairs upon shafts h, arranged parallel to each other and journaled in bearings secured to the upper ends of standards t', fixed to a supportingbracket, I. The vinner end of this bracket I is provided with a clamp, I, by which the bracket may be adjustably secured upon the standard A, said standard being provided with a scale to indicate the position to which said bracket should be adjusted to support pipes of different diameters.

In operation, a length of pipe, F, is to be inserted between the rolls upon the shafts and inwardly, so that it may cured firmly together.

inserted in another length of pipe. The shafts and rolls are then moved asunder, the length of pipe F removed and the beveled end inserted within the end of another length ofpipe, F, when said other length should be inserted between the rolls, and undergo the operatien heretofore described with relation to the length F. Before this, however, the bevelingrolls C D and beading-rolls C D have been so adjusted with relation to each other that while said beveling or erim ping rolls C D operate to oriinp the end of the pipelength F the beading-rolls will operate upon the lapped ends of lengths F and F and form an interlocking bead therein, whereby they will be se- As this operation is repeated with additional pipe lengths, the pipe-lengths which have been secured together are supported and guided by the supportingrolls H.

Should itbe desired to disconnect two lengths of pipe which have been united by the beading-rolls, these rolls may be removed from the shafts and the bead passed between the plain- I surfaced rolls C3 D, the action of whichvwill be to flatten ont the bead, so that the lengths may be wit-hdrawn from each other.

It will of course be understood that this 1na chine may be used for crimping and beading stove-pipes for the trade without joining them together. In this ease the bead formed upon the pipe-length would act simply as a stop to prevent two lengths of lapped too far.

pipe from being over- In the modification shown in Fig. 3 the movable shaft D is mounted at itsinner end in a. bearing, el, which is pivoted in the housing, a spring, G, being interposed between the shafts C and D, tending to force said shafts asunder, and a screw and follower being located near the outer end of av movable shaft. The operation ofthe machine, however, is un- Changed.

We claim- 1. The combination, with the standard and housing, of a shaft mounted in Xed bearings, a shaft mounted in a movable bearing, said shafts being provided with smoothing, crimping, and beading rolls and with intermeshing pinions, a spring interposed betweenv said shaftsfor movingthem asunder, and a screw or follower to compress said spring and move the rolls into operative position.

2. In a stove-pipe beading and crimping machine, the combination, with the standard provided with a scale, of a bracket provided with supporting-rolls arranged in pairs, and with a clamp, to secure said bracket on the standard.

In testimony whereof weaix our signatures in presence ot' two witnesses.

VALTER J. OOD. THOMAS WV. WOOD. 

